AcmReceiver: Eliminate AcmReceiver::decoders_

webrtc/modules/audio_coding/codecs/audio_format.cc

Index: webrtc/modules/audio_coding/codecs/audio_format.cc
diff --git a/webrtc/modules/audio_coding/codecs/audio_format.cc b/webrtc/modules/audio_coding/codecs/audio_format.cc
index 86d5d800422893f95e55f2e890468e4cc4a9448e..e764d773a740a2f63aa625606ae65a4a7dc1084d 100644
--- a/webrtc/modules/audio_coding/codecs/audio_format.cc
+++ b/webrtc/modules/audio_coding/codecs/audio_format.cc
@@ -33,6 +33,11 @@ SdpAudioFormat::~SdpAudioFormat() = default;
 SdpAudioFormat& SdpAudioFormat::operator=(const SdpAudioFormat&) = default;
 SdpAudioFormat& SdpAudioFormat::operator=(SdpAudioFormat&&) = default;
 
+bool operator==(const SdpAudioFormat& a, const SdpAudioFormat& b) {
+  return a.name == b.name && a.clockrate_hz == b.clockrate_hz &&
+         a.num_channels == b.num_channels && a.parameters == b.parameters;

[kwiberg-webrtc, 2016/09/20 15:21:00]

Should the .name comparison be case-insensitive?

[ossu, 2016/09/20 15:30:55]

I think it should. We're doing case-insensitive matching of these names
everywhere else in the code, so it makes sense that this would be done here as
well.

[kwiberg-webrtc, 2016/09/20 16:30:29]

Done.

+}
+
 void swap(SdpAudioFormat& a, SdpAudioFormat& b) {
   using std::swap;
   swap(a.name, b.name);